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Certain bacteria cells are being observed in an experiment. The population triples in 1 hour. If at the end of 3 hours, the population

Certain bacteria cells are being observed in an experiment. The population triples in 1 hour. If at the end of 3 hours, the population is 27,000, how many bacteria cells were present at the start of the experiment? After how many hours, approximately, will the number of cells reach 1 million?

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